Ch. 8 Vocab

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Across
  1. 4. The total area around a 3D object
  2. 8. A triangle with 3 congruent sides
  3. 11. Two angles that add up to 180 degrees
  4. 12. The distance from the center to the circumference of the circle
  5. 14. A quadrilateral that has exactly one pair of parallel sides
  6. 15. Two angles that add up to 90 degrees
  7. 17. Angles that have a common side and a common vertex and are next to each other
  8. 18. An angle that is between 0 and 90 degrees
  9. 19. The amount of space something takes up
  10. 20. A quadrilateral where all 4 angles are 90 degrees
Down
  1. 1. The distance from one point on a circle through the center to another point on the circle
  2. 2. The distance around the edge of a circle
  3. 3. A triangle with 2 congruent sides
  4. 5. A triangle with no congruent sides
  5. 6. An angle that is between 90 and 180 degrees
  6. 7. A flat shape with 4 sides
  7. 9. The angles opposite each other when two lines cross and are always equal.
  8. 10. A quadrilateral where opposite sides are parallel
  9. 13. A quadrilateral where all 4 sides are equal and 4 angles are 90 degrees
  10. 16. A quadrilateral where all 4 sides are equal